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Added 1 min ago
Senior Cloud Cybersecurity Engineer (DoD ATO/RMF)
Unity Technologies Corp LLC
Myersville, MD
…clients. Job Overview We are seeking a Senior Cloud Cybersecurity Engineer (DoD ATO/RMF) to join our team. You will design, assess, and strengthen secure cloud-hosted IT environments…
Added 1 min ago
Senior Systems Engineer - FinOps
Marriott
Bethesda, MD
The Senior Systems Engineer – FinOps is a senior technical specialist responsible for driving cloud cost optimization, financial accountability, and engineering-led efficiency across…
Added 2 mins ago
Data Security Engineer
BOOZ, ALLEN & HAMILTON, INC.
Fort Meade, MD
Experience tuning and troubleshooting data protection policies and controls
Added 2 mins ago
EG
Workday Adaptive Planning Engineer
Eliassen Group
Annapolis, MD
- $65 to $75 USD / hour
Our client is seeking a Workday Adaptive Planning Engineer to design, build, and maintain financial planning and forecasting solutions. The role partners with FP&A, Accounting, and Finance…
Added 6 mins ago
Project Manager - Construction & Medical Imaging Installs - Madison, WI - FIELD/TRAVEL
d Siemens Medical Solutions USA, Inc.
Remote, United States
…external stakeholders, i.e. customer, customer’s architect, engineer, contractor, administration, Siemens Sales and Service partners,…
Added 11 mins ago
J
System Engineer Manager, Information Technology
Jobgether
Remote, United States
- $135,000 to $150,000 USD / year
…applications and next steps. Our partner is looking for a System Engineer Manager, Information Technology based in the United…
Added 17 mins ago
T
Information Security Engineer
TTEC
Augusta, ME
- $65,000 to $70,000 USD / year
…appropriate validation, error handling, documentation, and protection of sensitive…
Added 33 mins ago
QA/QC Electrical Engineer
KURITA
Minneapolis-Brooklyn Park, MN
Kurtia America Inc. is seeking a detail-oriented QA/QC Electrical Engineer to plan, implement, and maintain quality assurance and quality control activities for electrical engineering,…
Added 33 mins ago
KC
Wastewater Process Engineer II - Brightwater
King County
Woodinville, WA
- $54.77 to $69.43 USD / hour
The Wastewater Process Engineer II will play a key role on the WTD process team and will participate in a diverse body of work such as overseeing and providing technical support for…
Added 38 mins ago
EG
Workday Adaptive Planning Engineer
Eliassen Group
Concord, NH
- $65 to $75 USD / hour
Our client is seeking a Workday Adaptive Planning Engineer to design, build, and maintain financial planning and forecasting solutions. The role partners with FP&A, Accounting, and Finance…
Added 41 mins ago
PM
Lead Forward Deployed Engineer
Prologis Management
Denver, CO
- $200,000 to $285,000 USD / year
Coordinate closely with central AI Product, Applied AI Engineering, Platform, Data and Knowledge, Security and Governance, Process and Agent Orchestration, Enablement, Architecture and AI…
Added 45 mins ago
BC
Coatings Engineer
Brunswick Corporation
Fond du Lac, WI
- $62,800 to $100,800 USD / year
As a Coatings Engineer at Mercury Marine, you will be responsible for providing engineering support to a Senior Coatings Engineer to maintain and improve marine paints and coatings for…
Added 53 mins ago
EG
Workday Adaptive Planning Engineer
Eliassen Group
Baton Rouge, LA
- $65 to $75 USD / hour
Our client is seeking a Workday Adaptive Planning Engineer to design, build, and maintain financial planning and forecasting solutions. The role partners with FP&A, Accounting, and Finance…
Added 53 mins ago
Principal Electrical Power Engineer, RF Payloads - TeraWave
Blue Origin LLC
Seattle, WA
…satellite communications network designed to deliver symmetrical data speeds of up to 6 Tbps anywhere on Earth. This multi-orbit constellation will consist of optically interconnected…
Added 1 hour ago
Senior Power Systems Electrical Engineer
Honeywell Technologies
Baltimore, MD
Honeywell is seeking a dedicated Senior Advanced Electrical Engineer to serve as the subject matter expert for the University of Maryland (UMD) NextGen Energy Program Public-Private…
Added 1 hour ago
Sr. Threat Detection and Incident Response Engineer
Motorola Solutions, Inc.
IL · UT · TX · MA
We are seeking a Senior Security Threat Detection and Incident Response Engineer to advance our proactive threat management capabilities and automated response posture. In this role, you…
Added 1 hour ago
T
Information Security Engineer
TTEC
Bismarck, ND
- $65,000 to $70,000 USD / year
…appropriate validation, error handling, documentation, and protection of sensitive…
Added 1 hour ago
EG
Workday Adaptive Planning Engineer
Eliassen Group
Bismarck, ND
- $65 to $75 USD / hour
Our client is seeking a Workday Adaptive Planning Engineer to design, build, and maintain financial planning and forecasting solutions. The role partners with FP&A, Accounting, and Finance…
Added 1 hour ago
Delivery Lead
EPAM Systems
Orlando, FL
Comfortable with data: delivery, cost and productivity metrics
Added 1 hour ago
J
Support Operations Engineer
Jobgether
Remote, United States
- $100,000 to $130,000 CAD / year
We are seeking a hands-on Support Systems Engineer to take ownership of the systems and workflows that power a growing customer support organization. In this remote role, you will lead the…
Added 1 hour ago
Staff Software Engineer - Orders Platform
Jobgether
Remote, United States
We are seeking an experienced Staff Software Engineer to help shape and scale a mission-critical ordering platform that powers restaurant operations. In this high-ownership role, you will…
Added 1 hour ago
A
Senior IT Systems Administrator
AgelessRx
Remote, United States
- $155,000 to $180,000 USD / year
Support healthcare data protection and HIPAA-related operational requirements without serving as the owner of the sec
Added 2 hours ago
LB
Senior Program Manager, Facilities Development and Planning
Long Beach Unified School District
Long Beach, CA
- $72.03 to $84.58 USD / hour
…the department; analyze and review budgetary and financial data; control and authorize expenditures in accordance with established limitations.…
Added 2 hours ago
EG
Workday Adaptive Planning Engineer
Eliassen Group
Montpelier, VT
- $65 to $75 USD / hour
Our client is seeking a Workday Adaptive Planning Engineer to design, build, and maintain financial planning and forecasting solutions. The role partners with FP&A, Accounting, and Finance…
Added 2 hours ago
Sr. Antenna Production Engineer
Echodyne Corp
Kirkland, WA
…working in Automotive, Transportation, Critical Infrastructure Protection, Border Security, Smart Cities, Uncrewed Aircraft Systems (UAS), and Airspace Management including Urban Air…

RTX

Senior Principal Software Engineer - Core Services and Libraries (Onsite)

United States

The salary range for this role is 132,400 USD - 251,600 USD.

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Job details

Pay: The salary range for this role is 132,400 USD - 251,600 USD.
Posting language: English
Posted: Nov 5, 2026

Original job description

Date Posted:

2026-11-05

Country:

United States of America

Location:

US-AL-HUNTSVILLE-382 ~ 420 Jan Davis Dr ~ DAVIS 382

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

Security Clearance Type:

None/Not Required

Security Clearance Status:

Not Required

Design the Foundation of Next-Generation Avionics

Join the growing Collins Aerospace Core Systems and Libraries team and play a key role in shaping the software foundation that powers modern aircraft. We are seeking a Principal Software Engineer who thrives on solving complex technical challenges and driving high-impact solutions across safety-critical systems.

In this role, you will lead the architecture and development of core software components, libraries, and tools that enable scalable, certifiable avionics platforms. You’ll work across the full software lifecycle, partnering with cross-functional teams to deliver high-quality solutions aligned with civil and military certification standards.

This is a unique opportunity to influence system-level design, advance open architecture initiatives, and contribute to technologies that define the future of aerospace.

Location: Onsite in Huntsville, AL

What You Will Do

Lead the architecture and design of core software components, libraries, and tooling aligned to avionics system requirements
Drive technical direction and execution across development and verification activities for safety-critical software (DO-178)
Define and manage software requirements, decomposition, and traceability across complex systems
Develop and verify software using modern C++ and object-oriented design principles
Own and produce DO-178 certification artifacts, including DAL-A deliverables
Lead and support certification efforts, including engagement with customers and regulatory authorities
Conduct and contribute to peer reviews to ensure quality, consistency, and compliance across the lifecycle
Collaborate cross-functionally with engineering, program leadership, and customers to align technical solutions with program objectives
Willing and Able to travel as required (domestic and international <10%).

What You Will Learn

Gain hands-on experience with cutting-edge and emerging technologies that are shaping the future of avionics and aerospace systems
Build end-to-end expertise across the full product lifecycle, from requirements and design through verification and delivery of safety-critical systems
Develop a deep understanding of software certification (DO-178) and how world-class avionics products meet rigorous regulatory standards
Learn how to design, scale, and sustain software product lines that support a wide range of platforms and global customers

Qualifications You Must Have

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience.
Experience designing and developing software architecture, libraries, or platform-level components within an aerospace or safety-critical environment.
Experience leading technical execution of projects, including customer engagement and presenting to senior stakeholders.
Experience working across cross-functional engineering and program teams to deliver complex, integrated solutions.

Qualifications We Prefer

Hands-on experience supporting DO-178 software development and certification activities (e.g., requirements, verification, or certification artifacts)
Experience with C++ and VxWorks.
Experience writing High-Level and Low-Level Requirements.
Experience writing Test Cases and Automated Test Procedures.
Experience with Civil Certification DO-178 – DAL A preferred.
Experience with design and development of Flight Management Systems, Software, Aircraft Applications or Middleware.
Familiar with revision control concepts and tools (e.g. GIT, Subversion, JIRA).

What We Offer

Medical, dental, and vision insurance
Three weeks of vacation for newly hired employees
Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
Tuition reimbursement program
Student Loan Repayment Program
Life insurance and disability coverage
Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
Birth, adoption, parental leave benefits
Ovia Health, fertility, and family planning
Adoption Assistance
Autism Benefit
Employee Assistance Plan, including up to 10 free counseling sessions
Healthy You Incentives, wellness rewards program
Doctor on Demand, virtual doctor visits
Bright Horizons, child and elder care services
Teladoc Medical Experts, second opinion program
And more!

This role is eligible for relocation.

Learn More & Apply Now!

Avionics delivers advanced cockpit displays, vision systems, and comprehensive digital solutions for global government, commercial and business aviation customers. We provide connectivity and managed data services to ensure safety and seamless communication for passengers, crews, and militaries, from aircraft and airports to air traffic management. Join us in creating solutions that connect the world, one flight at a time. Start your application today.

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.

Apply now and be part of the team that’s redefining aerospace, every day.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 132,400 USD - 251,600 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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More about this job

Skills

C++
Design principles
Regulatory compliance
Leadership
Software development
Test procedures
IBM Middleware
Atlassian JIRA

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